Stand with feet shoulder-width apart and a barbell on the floor. Grip the bar with an overhand grip and keep your knees slightly bent. Brace your core and keep your back flat. Hinge at the hips by pushing them back and lower the bar along your legs until you feel a stretch in your hamstrings. Drive your hips forward to stand back up, keeping the bar close to your body. Repeat for reps.
Log your barbell stiff legged deadlift sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.